ENGINEERING
TOMORROW
Installation guide
Electronic superheat controller
Type EIM 316 / 336 / 365
Introduction
Superheat controller EIM series is for use where superheat must be accurately
controlled, typically in commercial air conditioning, heat pumps, commercial
080 R9347
refrigeration and food retailing applications.
Reference: For details please see EIM data sheet.
Technical specifications
Supply voltage 24 V AC / DC (+ 15%), 50 / 60 Hz, 15 VA / 8 W, Class II isolation
Idle
Power consumption
Input signals
For the EMC compliance, sensor cable length must be
< 3 m / 118 in. For longer sensor cable, a ferrite bead
should be used.
Valve support
operating
Po 0.5 - 4.5 Vdc ratiometric pressure sensor i.e AKS 32R
S2 PT1000 (measuring range -60 – 120 °C /
S4 PT1000 or digital input from external contact
EIM 365: ETS 6 / ETS / ETS Colibri, KVS / KVS Colibri, CCM, CCMT
EIM 316/336: ETS 6
Data communication RS 485 – MODBUS RTU (Not terminated internally)
Storage : -34 – 71 °C / -30 – 160 °F
Environment
Operating : -25 – 60 °C / -13 – 140 °F
Humidity : < 95% RH, non condensing
Battery backup (Only for EIM 365) 18 - 28 V DC, > 49 VmAh
Operation Standalone or via MODBUS data communication
Applications
1. Superheat controller: standalone 2. Valve driver
Max. 10 mA @ 24 V DC (EIM 316 & 336)/ 25mA @
24V DC (EIM 365)
Max. 150 mA @ 24 V DC (EIM 316 & 336)/ 625mA @
24V DC (EIM 365)
-76 – 248 °F)
English
080 R9347
More info
EIM 316 / 335 / 336
© Danfoss | DCS (sb) | 2020.02
ETS Colibri®
ø 3 mm /
0.118 in
GND
5 mm / 0.2 in
S2 Pe
Power
1
2
4
3
5 mm / 0.2 in
BAckup
MODbus
11131
3
sensor
4
2
4
Danfoss
Danfoss
64-8040
R64-8040
ETS Colibri®
S2
S4
122
2
2
Danfoss
Reference signal
via MODBUS
Danfoss
R64-8041
Note:
S2 - Temperature sensor or DI
S4 - Temperature sensor
Weight : 40 gm
50 mm / 1.97 in
AN327425434124en -000201 | 1
Danfoss
80G165.10
PWR
COM
PWR
COM
Installation warnings
- Recommended mounting position: vertical
- Installation must comply with local standards and legislation
- Before working on the electrical connections, disconnect the device from the main power supply
- Before carrying out any maintenance operations on the device, disconnect all electrical connections
- For safety reasons the appliance must be fitted inside an electrical panel with no live parts accessible
- Do not expose the device to continuous water sprays or to a relative humidity greater than 90%
- Avoid exposure to corrosive or pollutant gases, natural elements, environments where explosives or
mixes of flammable gases are present, dust, strong vibrations or shock, large and rapid fluctuations
in ambient temperature that might cause condensation in combination with high humidity, strong
magnetic and/or radio interference (e.g. transmitting antennae).
- When connecting loads be aware of the maximum current for each relay and connector
- Use cable ends suitable for the corresponding connectors. After tightening connector screws, tug the
cables gently to check their tightness.
- Use appropriate data communication cables. Refer to the EIM data sheet for the kind of cable to be
used and setup recommendations.
- Minimize the length of probe and digital input cables as much as possible, and avoid spiral
routes around power devices. Separate from inductive loads and power cables to avoid possible
electromagnetic noises.
- Avoid touching or nearly touching the electronic components fitted on the board to avoid
electrostatic discharges.
Connection overview
TxD -
3
2
Temperature sensors
3
PT 1000
i.e. AKS 11
1
TxD
+
D
11 1
1
12
2
3
2 2
44
2
ETS 6 with
JST-XHP 5 connector
JST XHP-5 CONNECTOR
Pressure transmitter
Ratiometric 0.5 – 4.5 V
i.e. AKS 32R
Power Supply
24 V AC or DC
+
-
MODBUS to master
controller
GND
1
3
2
4
Connector on
ETS 6 coil
Connector on
EIM 336 controller
MODBUS connection overview
MODBUS in Daisy Chain
Note:
• If two EIMs are connected remember to remove the addressing jumper on one of the EIMs
• MODBUS transmission lines usually require termination resistors, especially for longer cable lengths
© Danfoss | DCS (sb) | 2020.02
Black
B2
B1
A2
A1
EIM slave 1
RS485 (+)
Master controller
RS485 (-)
Red
Yellow
Orange
ETS 6 valve
Green
Red
Black
White
ETS / KVS
RS485 (+)
RS485 (-)
EIM slave 2
R = 120 Ohm
Min. 0.25 W
AN327425434124en -000201 | 2